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About LinkBacksCan anyone help me out and tell which places i can get an uprated headgasket for an 20XE from.
Can anyone help me out and tell which places i can get an uprated headgasket for an 20XE from.
get a Z20let gasket from vaux and fit that, its a multi lay steel one and cost about £25
cheers, hope its better then a standard one.
The Z20 gasket doesnt fit right. the water channels are to small. Get a spesso one £55
right so whats happening here, i just ordered a z20let one, are u sure it defo dosent fit right?
I can show pics as I had one on my LET and cause overheating.
would be great if u can show me the pictures.
also have u got a direct number for spesso or a phone no for somewhere that supplys them?
As you can see, holes where there shouldnt be and the water ways are too small.
Last edited by James W; 29-03-2004 at 11:25.
RDS runs a Z20LET gasket
I run a Z20LET Gasket
No probelems there - others use them too
PhilAstra@Hotmail.com
evo engineering on 0207 703 2225
As you can clearly see they just dont match up without "modding" it.Originally Posted by PhilAstraSport
does anyone know the thickness of the Z20LET gasket?
yes i know that - myself and rob looked at these around 18 months ago. The hole "differences" dont actually matter. A c20let gasket on a Z20LET WOULD be a problem. I doubt it was that which caused the overheating
PhilAstra@Hotmail.com
think i'll just get the z20let gasket for now, if any problems aquire i'll change it for a spesso one, thanks for the pictures though james and ur info also phil.
SBD do the Cometic items, come in 1.1, 1.3 and 1.9mm sizes. Not cheap at just over the £100 mark but very good peices of kit.
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See my LC at www.LC0890G.co.uk
Its the physical size of the water ways that are the problem, they are a fraction of the size on the standard gasket and any "proper" LET gaskets.
It was deffo. this that caused the over heating and that was with a cooler running stat.
If the waterways can be opened out without damaging the gasket then I imagine it would be ok.
If you read the forced induction tuning manual reducing hole size is important when you up the boost on head gaskets. It actually increases water speed and reduces pump cavitation. I have had no overheating problems since ive had my new manifold and turbo, with the old setup it overheated very quickly in traffic. Alot of the heat under load on modded LETS is the huge backpressure the engine is under from the small exhaust manifold.
The Z20 Gasket works well, Arno at EDS uses it on car (25k plus) running almost 2bar of boost, if its gonna fail it will fail at those types of boost pressures.
As Dave has pointed out if you want a steel gasket that matchs the original then get a Cometic steel gasket but you are paying over the odds for sommit you don't really need. You also need to remove 3 rivets from the Z20 Gasket (easy with a good HSS drill bit) leaving the rivet thats by cylinder 4 (inlet manifold side) as well.
Sir, please step away from the car
i have a z20let one on my c20let. no problems with it !!
are the z20let head gaskets 20 quid with trade club discount or is that to any jo public? does anything else need modifying on them or is it just the rivets?
Just the Rivets, to Jo public its about 24 quid if I remember correctly, trade club is about £20 i think
Sir, please step away from the car
right so u can just stick the Z20LET gasket on, no need to modifiy the gasket or anything yeah, if so thanks for the help.
Just do the rivets
Sir, please step away from the car
sorry to say this, but what do u mean by rivets?
The gasket held together by 4 rivets (one each corner) 3 need to be carefully drilled out otherwise they foul the head and block. Once the gasket is put onto the block the locating lugs hold it in place.
If your not sure get a normal LET gasket from Vaux
Sir, please step away from the car
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